GB1334624A - Process for the continuous transesterification of dialkyl esters of aromatic dicarboxylic acids with diols - Google Patents

Process for the continuous transesterification of dialkyl esters of aromatic dicarboxylic acids with diols

Info

Publication number
GB1334624A
GB1334624A GB2428771*A GB2428771A GB1334624A GB 1334624 A GB1334624 A GB 1334624A GB 2428771 A GB2428771 A GB 2428771A GB 1334624 A GB1334624 A GB 1334624A
Authority
GB
United Kingdom
Prior art keywords
zones
diols
dicarboxylic acids
aromatic dicarboxylic
dialkyl esters
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2428771*A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evonik Operations GmbH
Original Assignee
Faserwerke Huels GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Faserwerke Huels GmbH filed Critical Faserwerke Huels GmbH
Publication of GB1334624A publication Critical patent/GB1334624A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/76—Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/03—Preparation of carboxylic acid esters by reacting an ester group with a hydroxy group
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
    • C07C67/54—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1334624 Continuous trans-esterification of dialkyl esters of aromatic dicarboxylic acids with diols FASERWERKE HULS GmbH 19 April 1971 [18 March 1970] 24287/71 Heading C2C The invention comprises using a series of successively arranged reaction zones in a continuous trans-esterification of dialkyl esters of aromatic dicarboxylic acids with diols, which zones are operated at the same or different pressures and temperatures and in which the pressure and temperature conditions can be graded so as to achieve a predetermined conversion and wherein the transesterification is effected in a system consisting of one or more stirred zones and one or more tubular zones arranged in alternating succession. A suitable apparatus is shown in Fig. 1 where the reactors are arranged in the form of a cascade for the successive passage therethrough of reaction mixture and each reactor is provided with a heating means; the apparatus is also supplied with pressure control valves in the vapour outlets from the stirred vessels by means of which the pressure in each reactor can be adjusted via pipe-line valves in the liquid reaction mixture outlets from the stirred vessels. In particular, dimethyl terephthalate is trans-esterified with ethylene glycol.
GB2428771*A 1970-03-18 1971-04-19 Process for the continuous transesterification of dialkyl esters of aromatic dicarboxylic acids with diols Expired GB1334624A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702012807 DE2012807A1 (en) 1970-03-18 1970-03-18 Process and device for the continuous transesterification of dialkyl esters of aromatic dicarboxylic acids with diols

Publications (1)

Publication Number Publication Date
GB1334624A true GB1334624A (en) 1973-10-24

Family

ID=5765428

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2428771*A Expired GB1334624A (en) 1970-03-18 1971-04-19 Process for the continuous transesterification of dialkyl esters of aromatic dicarboxylic acids with diols

Country Status (6)

Country Link
US (1) UST896030I4 (en)
BE (1) BE764486A (en)
DE (1) DE2012807A1 (en)
FR (1) FR2084465A5 (en)
GB (1) GB1334624A (en)
NL (1) NL7103434A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111943872A (en) * 2019-05-17 2020-11-17 北京芯友工程技术有限公司 Continuous process and device for synthesizing high-ester exchange rate sodium bis (hydroxyethyl) isophthalate-5-sulfonate through catalytic reaction rectification

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2514116C3 (en) * 1975-03-29 1983-03-17 Basf Ag, 6700 Ludwigshafen Process for the continuous production of linear, high molecular weight polybutylene terephthalates
US5763670A (en) * 1995-12-06 1998-06-09 Union Carbide Chemicals & Plastics Technology Corporation Hydroformylation processes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111943872A (en) * 2019-05-17 2020-11-17 北京芯友工程技术有限公司 Continuous process and device for synthesizing high-ester exchange rate sodium bis (hydroxyethyl) isophthalate-5-sulfonate through catalytic reaction rectification

Also Published As

Publication number Publication date
BE764486A (en) 1971-08-16
DE2012807A1 (en) 1971-10-07
FR2084465A5 (en) 1971-12-17
UST896030I4 (en) 1972-03-14
NL7103434A (en) 1971-09-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees